• Tonight

    Jul 31

    Lo 57°

    Patchy clouds

    Ragweed Pollen Weather
    • Grass
      Pollen
      10 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Fri

    Aug 1

    82°Lo 59°

    A thunderstorm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      10 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Aug 2

    80°Lo 59°

    Couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      10 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Aug 3

    82°Lo 58°

    Sunny to partly cloudy

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      25%
    more
  • Mon

    Aug 4

    84°Lo 63°

    Pleasant with clouds and sun

    Ragweed Pollen Weather
    • Precip
      10%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      46%
    more
Next Previous
Hi 80° RealFeel® 82° Precipitation 35%

Day

N

E

S

W

  • WSW 6 mph
  • Gusts: 17 mph

Partly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 57° RealFeel® 56° Precipitation 25%

Night

N

E

S

W

  • SSW 3 mph
  • Gusts: 8 mph

Patchy clouds

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Ottawa Pollen Levels - July 31

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Moderate

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 80° 83° N/A 75°
Low 57° 63° N/A 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 14:23 of sunlight, then sets at 8:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:00 AM with 12:02 of moolight, then sets at 11:02 PM

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps